forked from qt-creator/qt-creator
4646acad0d
Update the qtcreator qmljs parser to the one of Qt 5.12. It supports EcmaScript 7. Task-number: QTCREATORBUG-20341 Change-Id: I0d1cff71402ba17e22cde6b46c65614e162280de Reviewed-by: Erik Verbruggen <erik.verbruggen@qt.io>
85 lines
2.6 KiB
C++
85 lines
2.6 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2016 The Qt Company Ltd.
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** Contact: https://www.qt.io/licensing/
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**
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** This file is part of Qt Creator.
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**
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and The Qt Company. For licensing terms
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** and conditions see https://www.qt.io/terms-conditions. For further
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** information use the contact form at https://www.qt.io/contact-us.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 3 as published by the Free Software
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** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
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** included in the packaging of this file. Please review the following
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** information to ensure the GNU General Public License requirements will
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** be met: https://www.gnu.org/licenses/gpl-3.0.html.
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**
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****************************************************************************/
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#include "interactiveinterpreter.h"
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namespace Debugger {
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namespace Internal {
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bool InteractiveInterpreter::canEvaluate()
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{
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int yyaction = 0;
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int yytoken = -1;
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int yytos = -1;
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setCode(m_code, 1);
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m_tokens.append(T_FEED_JS_SCRIPT);
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m_tokens.append(T_FEED_JS_MODULE);
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do {
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if (++yytos == m_stateStack.size())
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m_stateStack.resize(m_stateStack.size() * 2);
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m_stateStack[yytos] = yyaction;
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again:
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if (yytoken == -1 && action_index[yyaction] != -TERMINAL_COUNT) {
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if (m_tokens.isEmpty())
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yytoken = lex();
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else
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yytoken = m_tokens.takeFirst();
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}
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yyaction = t_action(yyaction, yytoken);
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if (yyaction > 0) {
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if (yyaction == ACCEPT_STATE) {
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--yytos;
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return true;
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}
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yytoken = -1;
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} else if (yyaction < 0) {
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const int ruleno = -yyaction - 1;
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yytos -= rhs[ruleno];
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yyaction = nt_action(m_stateStack[yytos], lhs[ruleno] - TERMINAL_COUNT);
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}
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} while (yyaction);
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const int errorState = m_stateStack[yytos];
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if (t_action(errorState, T_AUTOMATIC_SEMICOLON) && canInsertAutomaticSemicolon(yytoken)) {
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yyaction = errorState;
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m_tokens.prepend(yytoken);
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yytoken = T_SEMICOLON;
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goto again;
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}
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if (yytoken != EOF_SYMBOL)
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return true;
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return false;
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}
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}
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}
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